Gas-burner



LL WILSON.

GAS BURNER.

nrrucmou FILED 1m. 1, 1917.

Patented Aug. 17, 1920.

UNITED STATES PATENT OFFICE.

GAS-BURNER.

Specification of Letters Patent.

Patented A11 17, 1920.

Application filed. April 7, 1917. Serial No. 160,485.

To all whom it may concern:

Be it known that I, LLoYo lvmson, a subject or" His Majesty the King of England, and resident of Keswiclr, in the county or Cumberland Kingdom of England, have invented certain new and useful Improve merits in Gas-Burners, of which the followingis a specification.

This invention relates to improvements in gas burners.

The prin ary object of the present invention is to provide a burner in which a common means ofadjustment is provided for simultaneouay regulating the gas and the primary air supply. The said adjustment means conveniently comprise an aXially slidable piston valve, or a screw or rack operated sleeve valve as may be preferred. I

The invention-is hereinafter described with reference to the accompanying drawings in which F gure 1 is a sectional side elevation oi one form of construction;

Fig. 2 is a partial sectional side elevation illustrating a slightly modified construction; and

Fig. 3 a detail view illustrating a monified form o1 controlling mechanism.

As shown and in one practical construction shown in Fig. 1 the body a oi? the burner is formed of tubular section and tapered toward its delivery end a where it is provided with the secondary air ports Z). The gas is supplied to the outer end of the burner by way of an angular connection piece 0 and the primary air is supplied to the burner partly by means of a central or axial arranged tube cl which projects through the aforesaid gas inlet connection piece 0 and partly by means of a series of annularly arranged inlet ports a formed around the inlet end of the burner tube a.

These ports 6 are adapted to be adjusted in area by means ot' an adjustable ring which may be rotatably or axially movable in relation to the burner tube The common regulating valve for controlling the gas and the primary airis in the form of a hollow piston g which works axially or rotatably, or both axially and rotatably inside the gas inlet connection 0 and controls the inlet and also the annular series of primary air inlets c. This hollow piston valve 9 is freely connected by means of a boss in on its end to the central air tube (Z by the provision of a pair of spaced collars i thereon. The external surface of a part oi this tube 0 is screw threaded as shown at Z; a nd works through a threaded boss or cap Z which closes or forms the end of the burner and rotation of the tube [Z and axial movement of the valve g is elfe-cted by means ot-a hand wheel m provided at its outer end. A suitable form of valve a may, as shown, be provided to control the portion of the primary air passing up the tube d and also a valve 0 may, as shown, be provided to control the secondary air ports 6. VJhcre the central air tube (Z is not used a solid spindle would be employed in its place. The tube (Z or the spindle may also if desired be operated by means of rack 32 and spur wheel as shown in Fig. 3, instead ofthe screw adjustment Z: Z previously described.

In another slightly modified arrangement of the common regulating means a valve in the form of a screw threaded sleeve may be pro .ed as shown in Fig. 2 which works on the outside of the gas inlet connection piece a and engages with a screw thread cut in cap 7" on the end of the burner tube a. In this construction the inner end of the sleeve would be formed as at to cooperate with the flared or funnel shaped inner end cl of the central tube (Z or spindle to regulate the gas supply and with a ring 8 of cone or other shape to regulate the primary air supply entering the ports 0. The aforesaid ring 8 may conveniently be adjustably mounted within the burner tube by suitable means such as by the provision of bolts or set screws it moving in longitudinally disposed slots a formed in the said burner tube a so as to control the series of air ports 0 and also to vary its own position in relation to the flared or funnel shaped end (Z of the central tube d or spindle and the inner end of the slidable valve sleeve 9. The sleeve 9 is adapted to be adjusted by means of a hand wheel m provided on the outer end of the sleeve g.

What I claim is 1. A gas burner for furnaces comprising in combination a tubular body portion having an inlet therein for the supply of air, an inlet for the supply of gas, an axially adjustable sleeve valve for simultaneously regulating the supply of air and gas and independent means for controlling the air inlet, substantially as described.

2. A gas burner comprising a tubular body portion provided adjacent its outer end with a plurality of annularly arranged primary air inlets, a lateral inlet port for the supply of gas, a sleeve valve slidab-ly mounted in said body portion and common .to the inlet ports, and a rotatable means supply, substantially as described.

4c. A gas burner for furnaces comprising in combination a'tubular body portion having inlet ports therein for the supply or primary air, means for controlling the opening of the said ports, an inlet port for the supply of gas, a common axially adjustable sleeve valve for simultaneously regulating the supplies of primary air and gas, and inlet openings in the tubular body portion at its delivery end for the supply of secondary air substantially as described.

5. Agas burner for furnaces comprising in combination a tubular body portion hav- .signed my name.

ing an inlet near its outer end fol-the supply of gas, inlet'ports for the supply of primary air, a hollow sleeve valve having a 7 port therein, and formed to cooperate with the gas inlet portand with the air inlet ports so as to simultaneously regulate the air and gas supplies, a screw threaded spindle in engagement with a threaded part of the body ofthe burner, a hand wheel connected to the said spindle and means for rotatably and operatively connecting the spindle with the said valve, substantially as described.

6. A gas burner for Jfurnaces comprising in combination a tubular body portion having an inlet near its outer end for the supply of gas, inlet ports for the supply of primary air, a hollow sleeve valve having a port therein, and formed to cooperatewith the gas inlet port and with the air inlet ports so as'to simultaneously regulate the air and gas supplies, a hollow centrally arranged tube for the supply of additional primary air, means for connecting the tube to the adjustable hollow sleeve valve, and means for moving said tube in an axial direction relative to the body ofthe burner substantially as described.

In testimony whereof LLOYD WILsoN,

I have hereunto Witnessesi A. MITCHINSON,

O. Y. ARMSTRON 

